Re: Ctrl-Z fails to suspend Windows programs

[Jani tiainen]

Christopher Faylor wrote:
On Tue, Jun 15, 2004 at 03:37:05PM +0300, Jani tiainen wrote:
Christopher Faylor wrote:
On Tue, Jun 15, 2004 at 09:58:16AM +0100, John Cooper wrote:
Is it a known limitation that "native" Windows programs cannot be
suspended?
Yes.  Window programs do not understand cygwin signals.
Thats true for cygwin part.  Native programs still can be
suspended/resumed but not by cygwin (or shell that is running and
waiting finishing of active process).

It is true for any part that Windows programs do not understand cygwin
signals.
There is no way to reliably suspend a Windows programs.
Yes there is ( piece of pseudo code):
For Each Thread THREAD_Y in Process PROCESS_X
        Call_Win32API SuspendThread(THREAD_Y.Handle)
Next
NOTE: In Win2k and later you need THREAD_SUSPEND_RESUME rights for 
particular thread.

--
Jani Tiainen
--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/